package duo_car;

public class Driver_chongzai {

  public void run(Bmw bmw)
{
    bmw.run();
}
//重载：表示司机开qq
public  void run(QQcar qq)
{
    qq.run();
}
public  void run(Benz benz)
{
    benz.run();
}
    public  void run(Car car)
    {
        car.run();
    }
}
